Which of the following best defines "inescapable"?

The term "inescapable" is best defined as "unavoidable." This means that a situation or outcome cannot be evaded or avoided. When something is described as inescapable, it implies that it is certain to happen and there is no way to escape from it.

In a broader context, understanding the concept of "inescapable" is important because it often pertains to circumstances where action or response is necessary, such as in legal or safety scenarios. This is relevant for drivers and road users, emphasizing the importance of recognizing certain unavoidable hazards or conditions on the road.

The other options highlight contrasting ideas: "avoidable" suggests that something can be evaded; "optional" indicates that a choice exists; and "insignificant" refers to something of little importance. All of these terms denote situations that are not inescapable, further clarifying why "unavoidable" is the correct choice in defining "inescapable."